Am 06.04.2021 um 23:11 schrieb Ryan Joseph via fpc-devel:
On Apr 6, 2021, at 12:57 PM, Sven Barth <pascaldra...@googlemail.com> wrote: In the example you posted below, I agree with you, but that is not what I said. Look at my example again:Also could you please verify that $H+ isn't causing problems? The string literal 'Hello World' is a short string but "String" is an AnsiString so that may influence the results you're expecting. However even without the operator I don't know how to delineate between the explicit cast vs the non-explicit cast. Writeln(Test('Hello World')); Writeln(Test(String('Hello World'))); These both appear to be equal as far as is_better_candidate is concerned.
First of *you* need to make sure that the type you pick for the generic parameter for a string constant is the correct one matching the $H+ directive as well as the UnicodeString modeswitch (and if the string constant contains WideChar elements it needs to be a UnicodeString anyway). That's where you currently search for the SHORTSTRING type.
Then you only need to make sure that the check for generic vs. non-generic is in place as I said in the other mail and the compiler will do the rest for you. You don't need to do *anything*. Your task is merely to provide the compiler with the suitable overload candidates and a way to check their order and it will already do all the rest.
Regards, Sven _______________________________________________ fpc-devel maillist - fpc-devel@lists.freepascal.org https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-devel
